Figure 1:
Epidemic curve of laboratory-confirmed cases of pandemic (H1N1) influenza resulting in hospital admission, admission to an intensive care unit (ICU) or death during the first wave (Apr. 12 to Aug. 29, 2009) and the second wave and post-peak period (Aug. 30, 2009, to Apr. 3, 2010) in Canada, by date of symptom onset or collection of specimen.